Development and Validation of Markers Closely Linked to Crown Rot Resistance in Wheat and Barley

Li, H.B.; Zhou, Meixue; Liu, C.J.

doi:10.5376/mpb.2012.03.0008

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Using resistant crops of high yielding potential is the most efficient and economical way to increase wheat productivity and manage soil borne pathogens especially in dryland fields. However, varieties with high level of resistance are still not available (Li et al, 2012). Only few sources with partial resistance which have been identified and used for molecular mapping studies such as Kukri (Wallwork et al, 2004), 2-49 (Collard et al, 2005), W21MMT20 (Bovill et al, 2006), CSCR6 (Ma et al, 2009), Ernie (Li et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Determination of Resistance in Winter Wheat Genotypes to the Dryland Root Rots caused by Fusarium culmorum in Turkey

Orakci

Morgounov

Dababat

2018

Uluslararası Tarım Ve Yaban Hayatı Bilimleri Dergisi

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The dryland root rot (foot/crown) caused by Fusarium spp. attacks cereals especially wheat and causes severe yield loss by reducing both grain quantity and quality. Among those Fusarium species attacking wheat crop is the Fusarium culmorum species which has been reported as the main crown rot causal agent in Turkey. Unfortunately, up-to-date, there is only some wheat genotypes with partial resistant to Fusarium spp. Therefore, this study was carried out to find new sources of resistance in diverse wheat genotypes to limit the damage caused by Fusarium disease. In this study, a total of 141 genotypes and breeding lines were obtained from 19 different countries, provided via the International Winter Wheat Improvement Program (IWWIP) and screened for their resistance reactions to a local isolate of Fusarium culmorum under three different environmental conditions (growth room, greenhouse and field) in Turkey in 2012. The best performed genotypes in terms of resistant were then rescreened in 2013 for data validation. Out of the 141 phenotyped wheat genotypes, 17 genotypes (12 %) ranked as moderately resistant (MR) at seedling and/or adult growth stage. The genotypes from Mexico seemed to have adult plant resistant rather than seedling resistance which was higher in the USA genotypes. Winter bread wheats PATWIN YR5

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Section: Introductionmentioning

confidence: 99%

Determination of Resistance in Winter Wheat Genotypes to the Dryland Root Rots caused by Fusarium culmorum in Turkey

Orakci

Morgounov

Dababat

2018

Uluslararası Tarım Ve Yaban Hayatı Bilimleri Dergisi

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Delivering drought tolerance to those who need it: from genetic resource to cultivar

Trethowan¹

2014

Crop Pasture Sci.

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Drought limits crop yields, and with climate change, the severity of water stress is projected to increase in many production environments. Therefore, it has never been more important to deliver the findings of drought research to farmers. The maintenance in situ, collection and characterisation of key genetic variability for stress tolerance, its introgression into agronomically adapted materials, and the subsequent deployment of improved cultivars is a continuum. This paper focuses on one segment of the pathway—the process from genetic characterisation to cultivar delivery—and possible efficiencies are discussed with emphasis on wheat, one of the world’s most important food crops. The first efficiency is to limit the initial exploitation of genetic resources to close relatives, as much of this variation remains uncharacterised, rather than attempting gene transfers from unrelated species, which is time-consuming and has a low probability of success. Synthetic wheat, developed by crossing modern tetraploid wheat to Aegilops tauschii, the donor of the D-genome, has provided new genetic diversity for stress tolerance and yield advantages under drought in excess of 30% have been reported. Synthetic wheat can also be made using Triticum dicoccum, often referred to as emmer wheat, thus introducing new variation for all three wheat genomes. The second efficiency is better coordinated, field-based phenotyping. The Australian Managed Environment Facility and similar national facilities established in India and China provide a basis for accurate field-based phenotyping and the weighting of physiological traits related to water-use efficiency on a national scale. The calculation of a water balance, careful management of site heterogeneity and judicious use of rain shelters maximise trait expression and improve the relevance of results. The third efficiency is to maximise locally the benefits of global public-good research. The global wheat improvement programs of the Consultative Group on International Agricultural Research (CGIAR) have a mandate to ‘tame’ genetic diversity and distribute these improved materials globally in nurseries targeted to specific environmental conditions such as drought. Nevertheless, the exploitation of these materials is rarely managed well at the national level. The CIMMYT Australia ICARDA Germplasm Evaluation (CAIGE) program is a nationally coordinated germplasm introduction and evaluation program. Key CGIAR nurseries are received and grown by Australian quarantine, increased at one or two locations, tested for disease resistance and subsequently grown nationally in yield trials. The data are stored on the CAIGE website and, along with all supporting data generated by the international centres, are publicly available.

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Effects of Genotype, Sowing Time and Seed Fungicide Pre-Treatments on Root and Crown Rot and Grain Yield in Bread Wheat

BAŞER

Gider

Bilgin

et al. 2021

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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This study was carried out to investigate the effects of sowing time, cultivar and seed fungicide applications on root and crown rot disease and grain yield of bread wheat with different earliness traits (Esperia, mid-early; Genesi, late and Anapo, early) in the experiment station of the Department of Field Crops, Faculty of Agriculture, Tekirdağ Namık Kemal University. Four different fungicides pre-treatments (prothioconazole + tebuconazole, carboxin + thiram, prochloraz + tiriticonazole and control) were applied to the seeds of the varieties before sowing in three different times, on 1 November, 15 November and 30 November 2016. The experiment was designed as a split-splitplot with 3 replications. The results of the variance analysis showed that the effect of applying different seed fungicide pre-treatment root and crown rot of bread wheat varieties was statistically significant. While the lowest root and crown rot with 2.67 % was obtained from the second sowing time, the highest root and crown rot was determined with a value of 3.64% for the earliest sowing on 01 November. Among the four different fungicide pre-treatments, the highest root and crown rot (5.59%) was obtained in the control application, while the lowest root and crown rot was obtained in prothioconazole + tebuconazole, carboxin + thiram and prochloraz + triticonazole, with 1.96%, 2.10% and 2.19% root and crown rot, respectively. These data indicate that early sowing may increase root and crown rot severity.

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Development and Validation of Markers Closely Linked to Crown Rot Resistance in Wheat and Barley

Cited by 3 publications

References 29 publications

Determination of Resistance in Winter Wheat Genotypes to the Dryland Root Rots caused by Fusarium culmorum in Turkey

Determination of Resistance in Winter Wheat Genotypes to the Dryland Root Rots caused by Fusarium culmorum in Turkey

Delivering drought tolerance to those who need it: from genetic resource to cultivar

Effects of Genotype, Sowing Time and Seed Fungicide Pre-Treatments on Root and Crown Rot and Grain Yield in Bread Wheat

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